The band has been to SPAC many times in the past three decades, and Jonathan Cain (keyboards, rhythm guitar and vocals) even finished writing the song "Faithfully. that we believed Journey represented. We wanted the music not to. The new Jonathan Cain-written ballad, "After All These Years," sounds just like the 1983 classic "Faithfully." "Where Did I Lose Your Love" also boasts a hook and the feel of one of…